Abstract
X-ray fluorescence imaging was made by the image reconstruction technique combined with synchrotron radiation. The monochromated synchrotron x-rays of line shape were used for the excitation of elements or the chemical state of an element. The sample was scanned with the rotational and translational motion, then the data was numerically transformed to the two-dimensional distribution of elements by the back-projection technique. In this method, the signal-to-background ratio was improved compared with the point scanning method. The application to the chemical state imaging of the sintered iron ore was demonstrated. The possibility of high resolution imaging was also studied using an asymmetric diffraction. A line-shaped x-ray beam as narrow as 4 μm was obtained.
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